Frame and hopper for gyratory stone crushers



(No Model.) 3 Sheets-Sheet 1.

A. E. HOYT. FRAME AND HOPPER FOR GYRATORY STONE GRUSHERS. 4

No. 525,419. Patented Sept; 4, 1894.

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. -A.E.HOYT. FRAME AND HOPPER FOR'GYRATORYSTONE GRUSHBRS.

No. 525,419. Patented Sept. 4, 1894.

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FRAME AND HOPPERFOR GYRATORY STONE GRUSHERS. v No. 525,419. "PatentedSept. 4, .1894

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AVERY EUGENE HOYT, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE GATES IRONWORKS, OF SAME PLACE.

FRAME AND HOPPER FOR-GYRATORY STONE-CRUSHERS.

SPECIFI EGATION forming part of Letters Patent N 0. 525,419, datedSeptember 4, 1894. Application filed December 2, 1893. Serial No.492,618- (No model.)

To all whom it may concern: a

cago, in the county of Cook and State of Illi-' nois, have inventedcertain new and useful Improvements in Frames and Hoppers for GyratoryStone-Crushers; and I do hereby declare the following to be a full,clear, and exact description of the invention, such'as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to certain improvements in gyratorystone breakers,and its obect is, by means of certain new and useful constructions,arrangements and combinations of parts as will be hereinafter describedand specifically claimed, to render the type of machine mentioned moreaccessible for erec tion and repairs, and thus avoid large expense forlabor and loss of time. i

In the accompanying drawings, Figure 1.

is a vertical longitudinalsection of a stone crusher embodying myinvention. 'Fig. 2. is

a horizontal transverse section on the line of the counter shaft, seeline 33 of Fig. 3. of the drawings; the gyrating shaft being removed.-Fig. 3. is a rear elevation of the lower portion of the shell or frame,the bottom plate being shown half in elevation and half in section, andthe gearing being removed; and Fig. 4.1 is a detail view showing moreplainly the manner in which the primary hopper is supported in the mainhopper, independently of the crusher. Fig. 5. is a vertical longitudinalsection of a crusher embodying my invention with the parts in positionready for the with drawal of the bottom plate carrying the actuatingmechanism.

' My features of invention are illustrated in connection with anordinary gyratory stone crusher comprising, for instance, a main frameor shell D andD', the section D having a spider B mounted upon it, andthe section D having an inclined diaphragm B" constructed within it.Within this shell or frame is a gyratory shaft A carryinga crushing coneA; said crushing cone operating within a crushing concave A, and thegyratory shaft having its lower end fitted in an eccentric box A andsaid eccentric box-being operated by gearing as A and A Myimproved formof hopper is constructed I as follows: It consists of an outer'mainhopper 0 andan inner auxiliary hopper O. The flare of themain hopper ison the same incline plane as the'greater portion of the flare of theinner auxiliary hopper. The inner hopper fits the inner diameter of thecylindrical part of the main hopper, and therefore can beslipped downinto the same and moved up out of the same. Its outer diameter is onlyslightly increased over that of the spider D upon which it rests, asillustrated in the drawings. The main and primary hoppers thusconstructed form as it were one continuous hopper. The construction issuch, that the spider B with the inner auxiliary-hopper can 13o raisedbodily up through the main hopper tal flange aformed on the upper edgeof the section D of the shell orframe. And by this means access can behad to the crushing head and concave and other parts of the machine forrepairs after the spider and auxiliary hopper have been lifted out ofposition, which adjustment can be effected without disturbing thesurrounding woodwork or platform that are usually employed about amachine of this type, but are not shown in the drawings. The auxiliaryhopper C may be formed integral with thespider B, without departing fromthe principle of my invention.

The lower portion of the machine, orbot tomplate' E as it is commonlycalled, is in the form of an angle plate havinga rear portion Eextending vertically upward and bolted to theface of ar'einforcementcollar D surrounding the rear opening 02 in the section Dof the shell or frame, and also being bolted to said frame in theordinary manner on the bottom. This bottom plate is provided' with smalltruck wheels 2) arranged on van axle b. suitably arranged on foundationsF. By this construction facilities are afforded for running out thebottom plate through the rear opening 01, independently of thesuperstructure and parts which it supports. To accomplish thiswithdrawal of the bottom plate, the bolts by which it is held to thesection D of the shell or frame, and the bolts by which the spider B isheld to the section D of said frame, are released, and a lifting device,consisting of an ordinary eye bolt tapped into The mai hopper O restsupon a horizon- These wheels run upon rails c the upper end of thegyratory shaft, in the ordinary way, and a crane book, are brought intoaction, and thereby the gyratory shaft with its crushing cone or head,together with the spider and auxiliary hopper are drawn upward out ofthe eccentric box and its gear, to asufficient height to clear thebottom plate and allow said plate and the gears resting on and connectedto it, to be withdrawn from the machine; said plate traveling on itswheels and the foundation rails, as shown in Fig. 5.

As usual, in the center hub of the bottom plate E, is formed a bearingfor the eccentric box and its gear, also a downwardly extending hubcarrying a lighter-screw and step; the rear portion E having thecircular opening d in it, into which is fitted a plate or disk shapedcasting E carrying bearings for a counter shaft E upon which are mounteda driving pulley A and the pinion A for actuating the machine.

It will be seen that by having the casting E constructed separate fromand bolted to the upright angular portion E of the base plate E, thecounter shaft E and its attached wheels A A can be moved laterallyseparately from the base plate, whenever it is desired to get access tothe eccentric bearing A and gear A for any purpose.

I contemplate employing a suitable adjust ing mechanism and attachingthe same to the shell or frame or other part of the crusher, and by suchmechanism provide for lowering the bottom plate to a sufficient extentto have it rest upon an independent car H as indicated by dotted linesin Fig. 1. and thus obviate the necessity of moving upward the gyratoryshaft, spider and auxiliary hopper. This I regard as an equivalent of myinvention' in that part which provides for the removal of the bottomplate on wheels running on rails, without disturbing the main shell orframe and other parts.

In operating to remove the bottom plate after the shaft, spider andauxiliary hopper are properly raised, the gearing along with the platepasses out through the rear opening (1 which is surrounded by thereinforcing portion D and in replacing it, it is returned through saidopening.

What I claim as my invention is- 1. A hopper for a stone crusher formedof two or more sections or rings arranged on different planes, and onesection forming a continuation of the other so as to form a continuousunbroken surface in the said hopperand one of said sections beingadapted to be lifted up and away from the other section withoutdisturbing the latter substantially as described.

2. A hopper for a stone crusher formed of two or more sections or ringsarranged on dif' ferent planes, and one section forming acontinuation ofthe other so as to present an unbroken surface in the said hopper andthe inner one of said sections resting upon an independent and differentsupport than that upon which the section or ring immediately surroundingit rests or is supported, substantially as described.

3. The combination in a hopper for a crusher, of two or more sectionsarranged on different planes and forming a continuous unbroken surfaceand so constructed that either one of said sections may be removedwithout disturbing the other substantially as described.

4. In a gyratory stone crusher, the combination, of a crusher frame, ahopper con structed of outer and inner sections or rings arranged ondifferent planes and forming a continuous unbroken surface, a gyrato ryshaft, a crusher head thereon, a spider mounted on said frame andsupporting the inner section of the hopper; the said shaft, spider andinner hopper section being so constructed that they may all be removedwithout interference from the outer section of the hopper, substantiallyas described.

5. In a gyratory stone crusher, the combination with the crusher casing,shaft and crusher head carried thereby, of a laterally moving base platecarrying the driving shaft, its gearing and the actuating mechanism ofthe crusher, and anti-friction devices supporting the said base plateindependently of the crusher frame whereon it can be withdrawn in ahorizontal plane from beneath the said frame and crusher head shaft,substantially as described.

6. In a gyratory stone crusher, the combination of a frame, a hopperconstructed of outer and inner sections or rings, a gyratory shaftmounted in said frame, a crusher head on said shaft, a spider alsomounted on said frame, a base plate carrying the driving shaft, itsgearing and the actuating mechanism of the crusher and anti-frictiondevices supporting the base plate independently of the crusher framewhereon it can be withdrawn in a horizontal plane from beneath the frameand crusher head shaft, substantially as described.

7. In a gyratory stone crusher, the combination of a frame D a gyratingshaft A, base plate E having an upright angular portion E provided withan opening and carrying the crusher operating means, a removable disk Ecarrying bearings for a counter shaft on which is mounted a drivingpulley and pinion; said disk being adapted to close the said opening inthe angular plate and to be bolted to said plate, whereby the base plateand all the gear ing mentioned, or simply the disk 6 and the gearingsupported by it can be moved laterally, at will, substantially asdescribed.

In testimony whereof I hereunto affix my signature in presence of twowitnesses.

AVERY EUGENE IIOY'J. Witnesses:

A. J. GATES, P. W. GATES.

